บรรณานุกรม

ขอขอบคุณ..

http://jsbg.joseph.ac.th/pm08/alesson/computer%20p2/__2.html

http://web.ku.ac.th/schoolnet/snet1/hardware/index01.htm

http://www.shc.ac.th/shc_media_online/media_m4/information/infor1.htm

http://th.wikipedia.org/wiki/%E0%B8%A7%E0%B8%B4%E0%B8%A7%E0%B8%B1%E0%B8%92%E0%B8%99%E0%B8%B2%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B8%84%E0%B8%AD%E0%B8%A1%E0%B8%9E%E0%B8%B4%E0%B8%A7%E0%B9%80%E0%B8%95%E0%B8%AD%E0%B8%A3%E0%B9%8C